Pool Water Quality PH/CL2 Chlorine Tester Level Meter For Swimming Pool Spa Tool Specification: Material: plastic/metal Color: White Size: 17.5 x 10.8 x 2.7cm / 6.9 x 4.3 x 1.1inch Type: Water Quality Tester Quantity: 1Pc Tester Quick Reference Chlorine Test: 1. Clean probes as instructed in manual. 2. Turn wheel to adjustment point on meter. 3. Insert probes into water up to black plastic level. 4. Wait for needle to rest on correct reading. PH Test: 1.While probes is in water, turn wheel to pH until it clicks. 2. Wait for needle to rest on correct reading. Warning: 1.Keep the switch in the OFF position when not in use. 2.Store in a cool, dry place away from sunlight. 3.Check the battery routinely for freshness-unit requires one AA 1.5 volt alkaline battery. 4.Read enclosed instructions before operating tester. 5.Any time you use the meter to test the chlorine level, you must adjust the meter. Package Content: 1 x Water Quality TesterWithout battery